Vibrating element transducer

Details Vibrating element transducer Vibrating element transducer

1995-03-15

1996-05-28

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

73705, G01L 1100, G01B 902

Patent

active

055218849

ABSTRACT:
A vibrating element transducer is provided in which a vibrating element and a substantially non-vibrating reference element are positioned side by side and illuminated via an optical fibre. The surfaces of the vibrating element and the reference element are formed at slightly different distances from the end of the optical fibre. The differing distances are arranged such that interference between the light reflected from the vibrating element and from the reference reflector can be used to determine the frequency of vibration of the vibrating element.

REFERENCES:
patent: 5087124 (1992-02-01), Smith et al.

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